Surname กาเลน (Kalen 
, กาเลน 
) , throughout the world, is quite a common cognomen. The family name กาเลน is habitual in Sweden, where it is quite a rare surname, Finland, where it is a rare surname, and Malaysia. Measured by absolute frequency, the name is most common in India, the United States, and Malaysia. Likewise, กาเลน is the forename as well as the last name.